:Product: 0106RSGA.txt :Issued: 2012 Jan 06 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 006 Issued at 2200Z on 06 Jan 2012 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at low levels for the past 24 hours. The largest event of the period was a C2 flare at 06/1125Z from Region 1392 (N19W32). A new emerging flux region was numbered today as Region 1394 (N18E42). IB. Solar Activity Forecast: Solar activity is expected to be at low levels with a slight chance for M-class events for the next three days (07-09 January). IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field has been predominantly quiet levels for the past 24 hours. Solar wind characteristics, as measured by the ACE spacecraft, indicate the arrival of a coronal hole high speed stream (CH HSS) with solar wind speeds increasing from around 330 - 450 km/s. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the next two days (07-08 January) as the effects the CH HSS wane. A return to mostly quiet levels is expected on day three (09 January). III. Event Probabilities 07 Jan-09 Jan Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Jan 136 Predicted 07 Jan-09 Jan 135/130/130 90 Day Mean 06 Jan 145 V. Geomagnetic A Indices Observed Afr/Ap 05 Jan 006/005 Estimated Afr/Ap 06 Jan 003/004 Predicted Afr/Ap 07 Jan-09 Jan 009/010-010/010-007/008 VI. Geomagnetic Activity Probabilities 07 Jan-09 Jan A. Middle Latitudes Active 30/30/10 Minor storm 10/10/01 Major-severe storm 01/01/01 B. High Latitudes Active 40/40/15 Minor storm 20/20/05 Major-severe storm 01/01/01